Bulk eraser for optical memory media

The entire data content of a thermally erasable optical memory medium is erased simultaneously by irradiating the entire signal-retaining layer of the medium with light in such a manner that the signal-retaining layer is preferentially heated over other layers in the medium, particularly other therm...

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Bibliographische Detailangaben
Hauptverfasser: MARTIN, MICHAEL B, CLARK, BRYAN K, RAY, ROBERT F
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The entire data content of a thermally erasable optical memory medium is erased simultaneously by irradiating the entire signal-retaining layer of the medium with light in such a manner that the signal-retaining layer is preferentially heated over other layers in the medium, particularly other thermo-optically active layers if any are present. The irradiation is most effectively achieved with a flash of light at high intensity and short duration.